Most spyware just collects information about your surfing habits for advertising reasons. But some spyware can be more powerful and will often make your computer{#blank#}1{#/blank#}. "Adware" is a type of spyware which is advertising software. It makes advertisements appear now and then while you{#blank#}2{#/blank#}the Internet. It is not dangerous but very annoying(令人心烦的).

    If this is the first time you've heard of spyware, you've probably got some on your PC. Surveys have found that 90% of computers have several pieces of spyware on them. And spyware will stay on your computer for a long time,{#blank#}3{#/blank#}collecting information and sending it back to its owners.

    There is some anti-spyware software that will remove most of your{#blank#}4{#/blank#}. However, some anti-spyware software is spyware itself, so be careful.

   Ladybugs have six short legs. They{#blank#}1{#/blank#}in many different places, including green lands, forests, cities, the countryside and along rivers. Different ladybugs have{#blank#}2{#/blank#}spots(点). Some of them don't have spots at all. The most common kind in North America is the 7-spotted ladybug. The 7-spotted ladybugs are the most active from spring to autumn. When the weather turns{#blank#}3{#/blank#}, they look for a warm place to

Sleep,{#blank#}4{#/blank#} under stones or in houses.